2008 STREET STOCK

1.	COMPETING MODELS
	A.	Open to all two (2) door North American made steel bodied passenger cars from 1974 or newer with 108” wheel base minimum. No pony or sport cars. Must be full tube rear housing.
	B.	Car body and overall appearance must retain all stock dimensions. Altered bodylines will be significant reason for disqualification. The body may not be lowered on the frame. The body must be mounted in original factory location in relation to the frame. All body components must maintain year and model of the rest of the car. Frame must remain stock front to rear. Rear may be reinforced but must remain stock; may be crossed. Stock dimension windshield pillars must be retained. Windshield pillars and windshield angle must remain stock. Steel bodies only, no fiberglass bodies.
	C.	All glass, including windshield must be removed. Windshield must have four, three inch tabs (two on top, two on the bottom) and two inner center braces. Windshield must be replaced by Lexan.
	D.	Doors must be welded.
	E.	Body molding, including door handles must be removed.
	F.	Interior of the car must be completely stripped. Driver must sit in stock position; pedals must be in stock position. Floor must be stock, front to rear. Rusted areas may be replaced with 22-gauge steel.
	G.	Battery must be anchored and mounted inside a spill proof container outside of driver’s compartment and not behind the rear axle.
	H.	Front firewall must be original steel with all the holes covered with no less than 20-gauge steel, and must remain in original position and location. Rear firewall must be completely closed off from front trunk compartment with 20-gauge steel, which must be riveted or welded.
	I.	No cockpitting of driver’s compartment. Right side floor may not be any higher than the transmission tunnel.
	J.	Front inner fender panels may be removed.
	K.	Stock front and rear bumpers must be in original location. No bracing outside of bumper. MAY USE PLASTIC NOSE AND TAIL PANELS ONLY.
	L.	All Unibody cars must have a minimum two-inch sub frame. The sub frame must be no less than.120 wall thickness.
	M.	No cowl hoods or hood scoops. No bolts or other supports to raise the center of hood at windshield side.
	N.	STREET STOCK CRANKSHAFT HEIGHT 15”
	O.	BODY PANELS ARE NOT TO GO BELOW FRAME RAILS ON ANY PART OF THE CAR.
	P.	Any added weight must be painted white with car number.
	Q.	Car must have full frame front to rear as it came from the factory.
	R.	All cars must have working fire extinguisher in easy reach of the driver, 2 ½ lb. minimum.
	S.	Radiator must have an overflow can mounted securely, one gallon minimum. NO antifreeze.
	T.	No engine oil coolers, Transmission oil cooler must be have mechanical connections, NO HOSE CLAMPS.
	U.	Exhaust pipes must extend behind the driver’s door. LOBAC MUFFLERS ARE REQUIRED. NO MUFFLER, NO RACING!!!!
	V.	Driver’s side 1” web net with a quick-release is mandatory. Mesh net prohibited.
	W.	All roll bars, side bars or other protrusions that driver may come in contact with must be properly padded.
	X.	Steel drive shafts only.
	Y.	Car must weigh 3200 lbs., with driver at all times. NO ALLOWANCE FOR GAS AFTER RACE, MAXIMUM 56% WEIGHT LEFT SIDE. No weight may be mounted in driver’s compartment.
	Z.	No hood scoops or air boxes of any kind.
	AA.	Single viewing surface mirrors allowed, must be the same dimension as the factory original.
	BB.	Throttle: factory cable linkage allowed. Dual return springs mandatory.
	CC.	All cars must be neatly painted and professionally lettered. Number 00 to 99, two digits only, no letters. Numbers must be 18” high.
	DD.	NO RADIOS ALLOWED.
	EE.	Radiators - Stock type only. (NO ANTIFREEZE)

IF THERE IS ANYTHING THAT IS NOT COVERED IN THE RULE BOOK, ASK FIRST BEFORE DOING, OR IT WILL BE AUTOMATICALLY RULED ILLEGAL.

2.	OVER COMPETITIVE RACE CARS
	The idea behind this division is to hold expenses down. While the above rules offer a good outline, every item cannot be covered by a written rule. If you want to run anything not covered in the rules ASK an official. Any item found illegal will be confiscated.

3.	ENGINE
	A.	Stock, unaltered engine and transmission combination. Including all engine accessories except air filters and valve covers. Any diameter front engine pulleys allowed. (V-BELT TYPES ONLY).
	B.	Engine must match make and model of car used. All engine blocks must be standard production blocks and have STOCK external and internal measurements, except for maximum .060 overbore.
	C.	Engine maximum displacement: Ford 351 ci, and GM 350 ci, Plus a maximum .060 overbore, Mopar 360 ci, plus maximum .020 overbore. No V6 engines allowed.
	D.	Engine must be stock factory location. Frame may not be notched for fuel pump clearance. All cars must be self starting. No push starts.
	E.	Pistons - All GM engines must use stock OEM type flat top or dished pistons. No domed pistons allowed. Ford and Chrysler must use OEM equivalent 9-1 CR pistons. Aftermarket TRW #2256 NHRA OEM stock type pistons may be used. No internal heat coatings or thermal barriers.
	F.	All engines must use stock OEM production crank, rods and block. Aftermarket crankshafts may be used if they are a direct replacement for stock. Minimum weight is 50 lbs. No scalloped counterweights, no reduced diameter counterweights, no gundrilled crankshafts. Stock factory OEM bearing diameters only. Normal balancing, with drilling perpendicular to main journals only. Stroke must remain stock. Aftermarket connecting rods may be used if they are a direct replacement for stock OEM in length and weight. The connecting rod must have a bolt and nut fastener ONLY. Rod must meet or exceed the factory stock weight of the rod it replaces.
	G.	Extra capacity oil pans allowed. Oil pan must have inspection hole 1 ¼ inches. MUST BE UNOBSTRUCTED! NO SIDE KICK-OUT OIL PANS. Location: 9 ½ inches from rear of block base or 4 ½ inches from front block base, 1 ¼ inches from oil pan rail..
	H.	Cylinder heads, and exhaust manifolds must be factory stock OEM production, CAST IRON only. No porting, polishing, or grinding allowed. . All valve seat and bowl work must be machine cut concentric to valve guide with a pilot . No undercut valves allowed. Heads must have stock internal and external measurements. NO marine or truck manifolds. NO epoxy or fillers to be used in manifolds or heads. Screw in or pinned studs allowed, (70cc minimum head allowed). NO Chevy angle plugs, or BOSS Fords or Chryslers Hemi’s or Pontiac Ram Air heads allowed. NO 305 Chevrolet heads allowed. (Except on 305 c.i. engines)
	I.	STREET HEADERS will be allowed with the following clarifications
		1.	1 5/8” Tube only.
		2.	No step headers.
		3.	No homemade headers.
		4.	Over the counter header for chassis only.
	J.	Compression ratio must not exceed 9:1.
	K.	Camshaft - any hydraulic cam may be used. Stock OEM diameter hydraulic lifters must be used, (.842 diameter for Chevy). No roller lifters, roller rockers or roller tip rockers allowed. Lifter bores must not be indexed. Lifter bores MUST remain stock. Sleeves are not permitted.
	L.	Rocker arm ratio on Chevrolet - 1.5 ONLY. Fords may use 1:6 ratio. No stud girdles allowed.
	M.	Valves maximum intake diameter 1.94 inches, maximum exhaust 1.50 inches. Valves must be stock steel. No PRO-Flow valves, no titanium, etc. Steel retainers only.
	N.	Carburetor - factory stock only with a maximum throttle plate opening of 1 11/16”. Throttle plates may be drilled to help engine idle fuel mixing. No thinning of throttle shafts or riveting of throttle plates to shafts must have stock type screws in throttle plates with at least one thread protruding through throttle shaft. No marine or truck venturi clusters may be used. Only choke plate may be removed. Any JETS ok. Brass floats ok. Holley 4412 is optional with the removal of the choke plate, Carburetor adapter with gaskets, Maximum height is 1.130”. Carburetor adapter may not be altered, angle milled, two straight holes only bored perpendicular to the top, maximum size 1.750”. No HP HOLLEY CARBURETORS. No HP Holley metering blocks. Stock passenger car air cleaners only. No tongues. Air cleaner may be (3 piece only) Base, Filter Element, and Solid Top covering diameter of element.
	O.	CAST IRON intake manifold (TWO BARREL ONLY). Manifolds must NOT be cut below carburetor (to open up intake to allow cross flow between intake inlets.) MUST BE AS STOCK! NO center dump manifolds allowed.

4.	IGNITION
	A.	Only stock OEM HEI ignition allowed. After market distributor cap and rotor allowed. Stock ignition modules may be replaced with MSD #8364 or Pro Comp # ML-482 circuit board modules. Ignition coils must be factory stock replacement. After market ignition wires may be used.

5.	TRANSMISSION
	A.	Only stock production, automatic transmission for year and model of car is allowed. Powerglide transmissions will be allowed as an optional transmission with the following gear ratios only: 1.76 ratio V8 transmission or 1.82 ratio 6 cyl. transmission. No other ratios allowed. No high performance or special order transmission is allowed. NO MODIFYING OF TRANSMISSION IN ANY MANNER IS ALLOWED. Reverse gear must be in working order.
	B.	All cars must have stock, unaltered OEM V-8 cylinder torque converter with a stall speed between 1500 – 2300 RPM. Stall speed will be checked with car in gear, on the ground measured with a tachometer. 11 & 12” torque converters only.

6.	WHEELS AND TIRES
	A.	STREET STOCK: Steel wheels only. Maximum width of 8”. No more than one inch off set difference between any two wheels side-to-side, front to back. After market wheels are permitted. All wheels must have the same diameter, either 14” or 15”. Must have steel backer plates welded to center of wheel. Heavy stud and nuts must be used. Studs must extend through nuts. REINFORCED WHEELS RIGHT FRONT, OVERSIZED STUDS AND LUGS RIGHT FRONT ARE MANDATORY. No aluminum, mag or sport type wheel allowed. Racing wheels are permitted.
	B.	Only designated track tires are allowed. Hoosier Commanche 26.5 or 27.5 by 8.0 x 15 inch.
	C.	Maximum tire width 76” measured outside to outside.
	D.	Wheelspacers NOT allowed.
	E.	No use of bleed off or pop off to control tire pressure.
	F.	Tire durometer readings will be checked.

7.	SUSPENSION
	A.	Parts must be stock for make and model, no heavy duty or limited product. Racing springs may be used; springs must mount in original spring mounting bracket position and location. Only 4 springs are allowed per car and must be stock in appearance. Coil springs may be cut. No adjustable shocks, front shocks are to be in stock location. Spring is to be ¾” diameter maximum.
	B.	Stock sway bar must be standard size. Sway bar link must be standard factory production type. Rear sway not bar allowed.
	C.	A minimum of 7” ground clearance will be measured at the frame rail behind the front wheel and in front of the rear wheel.
	D.	A-frames must remain stock and unaltered.
	E.	Stock type shocks only (non-adjustable). NO Rod End Shocks in front.
	F.	Jack bolts are allowed.
	G.	No - monoballs - allowed on any part of car.

8.	REAR ENDS
	LOCKED REAR ENDS ONLY, LIMITED SLIP REAR ENDS ARE NOT ALLOWED. NO DETROIT LOCKERS.
		GM cars with 2-speed maximum gear ratio 308.
		GM cars with 3-speed maximum gear ration 373 only.
		AMC, Ford, or Mopar with 3-speed maximum gear ratio 390.

9.	BRAKES
	A.	Stock OEM brakes are mandatory on all four wheels and must be in 100 percent working order. No heavy duty or limited production parts. No adjusting devices. Single master cylinder. NO floor mounted brake systems. Firewall mounted only. OEM style master cylinder REQUIRED. Can modify arm. Mount must be OEM stock location at firewall.

10.	ROLL CAGE
	A.	Cars must have a complete, full roll cage around the driver that must be welded to the frame. Tubing for roll cages must be one and three quarters inch (1 ¾”) outside diameter and must be made of steel. Minimum wall thickness of roll cage tubing is.090.
	B.	There must be at least four horizontal and three vertical bars within any remaining doors. All welds must have gussets.

11.	SEATS AND SHOULDER HARNESS
	A.	All seats must be aluminum and must have headrest or high back seat. Seat must be attached to roll cage and frame with 6pcs. grade 5 bolts 3/8 diameter and USS washers. Back of seat must be mounted to the roll cage.
	B.	Quick release, five-point restraint system that is designed for racing is mandatory. Also mandatory are 3” wide (minimum) lap belt and shoulder harness and a 2” wide antisubmarine strap with a central release. All safety belts must be no more than 2 years old and must have identification tag. ALL HARNESSES SUBJECT TO TECH INSPECTORS APPROVAL.
	C.	Padding: All roll bars, sidebars or any other protrusion that the driver’s body may come in contact with upon impact, must be padded. Steering wheel hub must be padded.
	D.	Shoulder harness must be attached to the roll cage. Absolutely no original equipment belts.
	E. Hans or Hutchins head and neck restraints are mandatory.
12.	FUEL CELL
	A.	ALL CARS MUST HAVE A FUEL CELL, 22 GALLONS MAXIMUM. Plastic cells are permitted, but must be enclosed in a steel container made of minimum 20-gauge steel. An 8-gallon cell is recommended.
	B.	Fuel cell must be mounted in center of trunk. No off set permitted. Bottom of fuel cell must be no lower than centerline of rear axle. Fuel cell must be securely fastened (bolted and strapped). Minimum outside diameter of 1” X welded beneath fuel cell (Frame rail to rail).

Our Sister Track			Any Track Related Questions Please Contact: John White (631)745-9805
Track Phone: (315)589-3018

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